Method for sending power headroom report, and terminal and network device

Abstract

The present disclosure relates to a method for sending a power headroom report, and a terminal and a network device. The method comprises: sending first information, wherein the first information is used for indicating in a multi-transmission and reception point (M-TRP) scenario power headroom information of one or N TRPs, the power headroom information at least comprises a power headroom (PH) and a configured maximum transmission power, and N is an integer greater than 1; and the power headroom information of the one or N TRPs is carried in one power headroom report (PHR), each TRP corresponds to M pieces of power headroom information, different pieces of power headroom information of each TRP have a correspondence with different uplink transmission waveforms, the uplink transmission waveforms are used for transmitting PUSCHs, and M is a positive integer. By means of the present disclosure, a network device can determine a scheduling decision for waveforms on the basis of power headroom information of different waveforms in an M-TRP scenario, thus improving the scheduling efficiency.

Description

Method, terminal, and network device for sending power headroom report Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method, a terminal, and a network device for sending a power headroom report. Background Art

[0002] The terminal needs to report a power headroom report (PHR) to the network device. The network device can obtain the power information of the terminal through the PHR and perform relevant scheduling on the terminal.

[0003] Summary of the Invention

[0004] In a scenario with multiple transmitting and receiving points, when a network device instructs a terminal to switch waveforms, it cannot schedule the waveform switching based on the power headroom information of the terminal under different waveforms.

[0005] According to the first aspect of an embodiment of the present disclosure, a method for sending a power headroom report is proposed, comprising: sending first information, wherein the first information is used to indicate the power headroom information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, the power headroom information including at least a power headroom PH and a configured maximum transmit power, where N is an integer greater than 1; wherein the power headroom information of the 1 or N TRPs is carried in a power headroom report PHR, each TRP corresponds to M power headroom information, and the different power headroom information of each TRP corresponds to different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

[0006] According to the second aspect of an embodiment of the present disclosure, a method for sending a power headroom report is proposed, including: receiving first information, wherein the first information is used to indicate the power headroom information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, the power headroom information at least includes a power headroom PH and a configured maximum transmit power, and N is an integer greater than 1; wherein the power headroom information of the 1 or N TRPs is carried in a power headroom report PHR, each TRP corresponds to M power headroom information, and the different power headroom information of each TRP corresponds to different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

[0007] According to the third aspect of an embodiment of the present disclosure, a method for sending a power headroom report is proposed, including: a terminal sends first information to a network device, the first information being used to indicate the power headroom information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, the power headroom information including at least a power headroom PH and a configured maximum transmitting power, where N is an integer greater than 1; wherein the power headroom information of the 1 or N TRPs is carried in a power headroom report PHR, each TRP corresponds to M power headroom information, and the different power headroom information of each TRP corresponds to different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer; the network device receives the first information.

[0008] According to the fourth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a transceiver module for sending first information, wherein the first information is used to indicate the power margin information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, and the power margin information includes at least a power margin PH and a configured maximum transmit power, where N is an integer greater than 1; wherein the power margin information of the 1 or N TRPs is carried in a power margin report PHR, each TRP corresponds to M power margin information, and the different power margin information of each TRP corresponds to different uplink transmission waveforms, and the uplink transmission waveform is used to transmit PUSCH, where M is a positive integer.

[0009] According to the fifth aspect of an embodiment of the present disclosure, a network device is proposed, including: a transceiver module for receiving first information, wherein the first information is used to indicate the power margin information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, and the power margin information includes at least a power margin PH and a configured maximum transmit power, where N is an integer greater than 1; wherein the power margin information of the 1 or N TRPs is carried in a power margin report PHR, each TRP corresponds to M power margin information, and the different power margin information of each TRP corresponds to different uplink transmission waveforms, and the uplink transmission waveform is used to transmit PUSCH, where M is a positive integer.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the processor is configured to execute the communication method of the first aspect.

[0011] According to a seventh aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the processor is configured to execute the communication method of the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the communication method of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0013] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and wherein when the instructions are executed on a communication device, the communication device executes the communication method of the first aspect or the second aspect.

[0014] Through the solution provided by the embodiments of the present disclosure, the network device can determine the scheduling decision for the waveform based on the power margin information of different waveforms in a scenario with multiple sending and receiving points, thereby improving the scheduling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0016] FIG1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0017] FIG1B is a diagram of a PHR configuration format under a single carrier according to an embodiment of the present disclosure.

[0018] FIG1C is a diagram of a PHR configuration format under multiple carriers according to an embodiment of the present disclosure.

[0019] FIG1D is a schematic diagram of a transmission scenario under S-DCI scheduling provided according to an embodiment of the present disclosure.

[0020] FIG1E is a schematic diagram of a transmission scenario under M-DCI scheduling provided according to an embodiment of the present disclosure.

[0021] FIG2A is an exemplary interaction diagram of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0022] FIG2B is a diagram of a PHR configuration format under a single carrier according to an embodiment of the present disclosure.

[0023] FIG2C is a diagram of a PHR configuration format under multiple carriers provided according to an embodiment of the present disclosure.

[0024] FIG2D is a diagram of a PHR configuration format under multiple carriers according to an embodiment of the present disclosure.

[0025] FIG2E is a diagram of a PHR configuration format under a single carrier according to an embodiment of the present disclosure.

[0026] FIG2F is a diagram of a PHR configuration format under multiple carriers provided according to an embodiment of the present disclosure.

[0027] FIG2G is a diagram of a PHR configuration format under multiple carriers according to an embodiment of the present disclosure.

[0028] FIG2H is an exemplary interaction diagram of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0029] FIG2I is a diagram of a PHR configuration format under a single carrier according to an embodiment of the present disclosure.

[0030] FIG2J is a diagram of a PHR configuration format under multiple carriers provided according to an embodiment of the present disclosure.

[0031] FIG2K is a diagram of a PHR configuration format under multiple carriers according to an embodiment of the present disclosure.

[0032] FIG3A is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0033] FIG3B is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0034] FIG3C is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0035] FIG3D is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0036] FIG4A is a flow chart showing a method for sending a power headroom report according to an embodiment of the present disclosure.

[0037] FIG4B is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0038] FIG4C is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0039] FIG4D is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0040] FIG5 is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure.

[0041] FIG6A is a schematic diagram of a terminal according to an embodiment of the present disclosure.

[0042] FIG6B is a schematic diagram of a network device according to an embodiment of the present disclosure.

[0043] Fig. 7A is a schematic diagram showing a communication device according to an exemplary embodiment.

[0044] FIG7B is a schematic diagram showing a chip structure according to an exemplary embodiment. DETAILED DESCRIPTION

[0045] The embodiments of the present disclosure provide a method, a terminal, and a network device for sending a power headroom report.

[0046] In the first aspect, an embodiment of the present disclosure proposes a method for sending a power headroom report, including: sending first information, the first information is used to indicate the power headroom information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, the power headroom information includes at least the power headroom PH and the configured maximum transmit power, N is an integer greater than 1; wherein, the power headroom information of 1 or N TRPs is carried in a power headroom report PHR, each TRP corresponds to M power headroom information, different power headroom information of each TRP corresponds to different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

[0047] In the above embodiment, in the M-TRP scenario, the terminal reports the power margin information corresponding to one or more TRPs under different waveforms in a PHR, so that the network device determines the scheduling decision for the waveform based on the power margin information corresponding to the different waveforms reported by the terminal, thereby improving the scheduling efficiency.

[0048] In combination with some embodiments of the first aspect, in some embodiments, the method also includes: receiving second information, the second information is used to instruct the terminal to report M power margin information of each TRP in N TRPs, the M power margin information of each TRP corresponds to M uplink transmission waveforms, and M is greater than 1.

[0049] In the above embodiment, the network device instructs the terminal to report M power margin information of each TRP in N TRPs in one PHR report by sending the second information, so that the network device can obtain the power margin information of multiple waveforms corresponding to each TRP in one PHR report, thereby improving the efficiency of PHR reporting.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the M power headroom information of each TRP is determined based on at least one of the following: the currently transmitted PUSCH; the reference PUSCH configured by the network device; the most recently transmitted PUSCH within the time window.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report meet the time requirements, and the M power margin information of each TRP is determined based on the PUSCH currently transmitted by each TRP; the M power margin information of each TRP includes: first power margin information, the first power margin information is the actual power margin information determined based on the uplink transmission waveform used by the currently transmitted PUSCH; second power margin information, the second power margin information is the virtual power margin information determined based on the target waveform; the target waveform is the waveform to be switched for the terminal to transmit the PUSCH.

[0052] In the above embodiment, if the currently transmitted PUSCH and the PUSCH carrying the power margin information report meet the time requirements, the terminal calculates the actual power margin information based on the waveform used by the currently transmitted PUSCH and calculates the virtual power margin information based on the waveform to be switched, so that the terminal can determine the power margin information of each TRP under different waveforms, thereby improving the flexibility of PHR reporting.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report do not meet the time requirements, or the terminal is not currently transmitting PUSCH, and the M power margin information of each TRP is determined based on the reference PUSCH, and the reference PUSCH is configured based on different uplink transmission waveforms; the M power margin information are M virtual power margin information determined based on different uplink transmission waveform configurations of the reference PUSCH.

[0054] In the above embodiment, if the currently transmitted PUSCH and the PUSCH carrying the power headroom information report do not meet the time requirement, or the terminal is not currently transmitting the PUSCH, the terminal determines the virtual power headroom information under different waveforms based on the reference PUSCH, thereby improving the flexibility of PHR reporting.

[0055] In combination with some embodiments of the first aspect, in some embodiments, the M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the currently transmitted PUSCH.

[0056] In the above embodiment, when calculating the virtual power headroom information, the configuration parameters of the currently transmitted PUSCH may be used to determine it, so as to improve the accuracy of the determined power headroom information.

[0057] With reference to some embodiments of the first aspect, in some embodiments, there is a transmitted PUSCH within the time window, and the reference PUSCH is the most recently transmitted PUSCH within the time window.

[0058] In the above embodiment, if there is a transmitted PUSCH in the time window, the terminal determines the power headroom information corresponding to different waveforms based on the most recently transmitted PUSCH, thereby improving the accuracy of determining the power headroom information.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the M power margin information corresponding to each TRP includes the maximum transmit power, and the maximum transmit power is determined based at least on the maximum power backoff MPR of the terminal, the power management maximum power backoff P-MPR, and the additional maximum power backoff A-MPR.

[0060] In the above embodiment, the calculation of the maximum transmit power takes into account the MPR, P-MPR, and A-MPR, thereby improving the accuracy of the maximum transmit power calculation.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the uplink transmission waveform is a discrete Fourier transform orthogonal frequency division multiplexing DFT-s-OFDM waveform, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the continuous frequency domain resource allocation FDRA configuration.

[0062] In the above embodiment, when calculating the power headroom information of the DFT-s-OFDM waveform, continuous FDRA needs to be considered to improve the accuracy of determining the power headroom information.

[0063] In combination with some embodiments of the first aspect, in some embodiments, the uplink transmission waveform is a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, the first FDRA allocation corresponding to the CP-OFDM waveform is continuous or discontinuous, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the second FDRA configuration; the second FDRA is determined based on the first FDRA or based on a predefined reference configuration, and the second FDRA is a continuous frequency domain resource allocation.

[0064] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving third information, where the third information is used to instruct the terminal to report M power headroom information.

[0065] In the above embodiment, the network device instructs the terminal to report M power headroom information in one PHR report by sending the third information, so that the network device can obtain multiple power headroom information in one PHR report, thereby improving the efficiency of PHR reporting.

[0066] In combination with some embodiments of the first aspect, in some embodiments, M power margin information corresponds to 1 TRP, and the first information includes M power margin information corresponding to 1 TRP; 1 TRP is determined based on at least one of the following methods: TRP of actual transmission PUSCH; predefined TRP; TRP corresponding to the number of transmission layers being 1; TRP with continuous resource block allocation; TRP when channel conditions meet the threshold.

[0067] In the above embodiment, the first information is used to indicate M power margin information corresponding to 1 TRP, so that the network device determines the power margin information of 1 TRP under different waveforms, thereby making better scheduling decisions for the waveform switching of the terminal.

[0068] In combination with some embodiments of the first aspect, in some embodiments, the second information or the third information is not enabled, or the second information is not configured, or the third information is not configured; the first information is used to indicate 1 power margin information of each TRP in 1 or N TRPs.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the target waveform, and the target waveform is the waveform to be switched for the terminal to transmit PUSCH; sending the first information includes: sending the first information before receiving the first command; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0070] In the above embodiment, the terminal determines the power headroom information that needs to be reported based on the target waveform and reports it before the waveform is switched, so that the network device determines whether to instruct the terminal to switch the waveform based on the power headroom information corresponding to the target waveform, thereby improving scheduling efficiency.

[0071] In combination with some embodiments of the first aspect, in some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the waveform used for actual transmission of PUSCH; sending the first information includes: receiving the first command, sending the first information; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0072] In the above embodiment, the terminal determines the power headroom information that needs to be reported based on the currently used waveform, and reports it after the waveform is switched, so that the network device determines whether to instruct the terminal to switch the waveform based on the power headroom information corresponding to the currently used waveform, thereby improving scheduling efficiency.

[0073] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in a redefined media access control element MAC-CE, or a newly added MAC-CE.

[0074] In the above embodiment, when the network device instructs the terminal to report the power margin information of 1 or N TRPs in one PHR, the RRC signaling needs to be redefined so that the terminal can determine to report the power margin information of 1 or N TRPs in one PHR through RRC signaling, thereby improving the flexibility of PHR reporting.

[0075] In combination with some embodiments of the first aspect, in some embodiments, the second information or the third information is carried in redefined RRC signaling or newly added RRC signaling.

[0076] In the above embodiment, when the terminal reports the power headroom information of 1 or N TRPs in one PHR, it is necessary to redefine the MAC-CE that carries the PHR so that the MAC-CE can report the power headroom information of 1 or N TRPs in one PHR report, thereby improving the flexibility of PHR reporting.

[0077] In combination with some embodiments of the first aspect, in some embodiments, the terminal transmits the PUSCH based on single downlink control information S-DCI or multiple downlink control information M-DCI.

[0078] In combination with some embodiments of the first aspect, in some embodiments, the terminal transmits the PUSCH based on a single carrier or carrier aggregation CA.

[0079] In the second aspect, an embodiment of the present disclosure proposes a method for sending a power margin report, including: receiving first information, the first information is used to indicate the power margin information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, the power margin information includes at least the power margin PH and the configured maximum transmit power, N is an integer greater than 1; wherein, the power margin information of 1 or N TRPs is carried in a power margin report PHR, each TRP corresponds to M power margin information, different power margin information of each TRP corresponds to different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

[0080] In combination with some embodiments of the second aspect, in some embodiments, the method also includes: sending second information, the second information is used to instruct the terminal to report M power margin information of each TRP in N TRPs, the M power margin information of each TRP corresponds to M uplink transmission waveforms, and M is greater than 1.

[0081] In combination with some embodiments of the second aspect, in some embodiments, the M power headroom information of each TRP is determined based on at least one of the following: the currently transmitted PUSCH; the reference PUSCH configured by the network device; the most recently transmitted PUSCH within the time window.

[0082] In combination with some embodiments of the second aspect, in some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report meet the time requirements, and the M power margin information of each TRP is determined based on the PUSCH currently transmitted by each TRP; the M power margin information of each TRP includes: first power margin information, the first power margin information is the actual power margin information determined based on the uplink transmission waveform used by the currently transmitted PUSCH; second power margin information, the second power margin information is the virtual power margin information determined based on the target waveform; the target waveform is the waveform to be switched for the terminal to transmit the PUSCH.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report do not meet the time requirements, or the terminal is not currently transmitting PUSCH, and the M power margin information of each TRP is determined based on the reference PUSCH, and the reference PUSCH is configured based on different uplink transmission waveforms; the M power margin information are M virtual power margin information determined based on different uplink transmission waveform configurations of the reference PUSCH.

[0084] In combination with some embodiments of the second aspect, in some embodiments, the M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the currently transmitted PUSCH.

[0085] In combination with some embodiments of the second aspect, in some embodiments, there is a transmitted PUSCH within the time window, and the reference PUSCH is the most recently transmitted PUSCH within the time window.

[0086] In combination with some embodiments of the second aspect, in some embodiments, the M power margin information corresponding to each TRP includes the maximum transmit power, and the maximum transmit power is determined at least based on the maximum power backoff MPR of the terminal, the power management maximum power backoff P-MPR and the additional maximum power backoff A-MPR.

[0087] In combination with some embodiments of the second aspect, in some embodiments, the uplink transmission waveform is a discrete Fourier transform orthogonal frequency division multiplexing DFT-s-OFDM waveform, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the continuous frequency domain resource allocation FDRA configuration.

[0088] In combination with some embodiments of the second aspect, in some embodiments, the uplink transmission waveform is a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, the first FDRA allocation corresponding to the CP-OFDM waveform is continuous or discontinuous, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the second FDRA configuration; the second FDRA is determined based on the first FDRA or based on a predefined reference configuration, and the second FDRA is a continuous frequency domain resource allocation.

[0089] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: sending third information, where the third information is used to instruct the terminal to report M power headroom information.

[0090] In conjunction with some embodiments of the second aspect, in some embodiments, M power headroom information corresponds to 1 TRP, and the first information includes M power headroom information corresponding to 1 TRP;

[0091] A TRP is determined based on at least one of the following methods: the TRP of the actual PUSCH transmission; the predefined TRP; the TRP corresponding to the number of transmission layers being 1; the TRP with continuous resource block allocation; and the TRP when the channel condition meets the threshold.

[0092] In combination with some embodiments of the second aspect, in some embodiments, the second information or the third information is not enabled, or the second information is not configured, or the third information is not configured; the first information is used to indicate 1 power margin information of each TRP in 1 or N TRPs.

[0093] In combination with some embodiments of the second aspect, in some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the target waveform, and the target waveform is the waveform to be switched for the terminal to transmit PUSCH; receiving the first information includes: receiving the first information before sending the first command; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0094] In combination with some embodiments of the second aspect, in some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the waveform used for actual transmission of PUSCH; receiving the first information includes: sending a first command, receiving the first information; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0095] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in a redefined media access control element MAC-CE, or a newly added MAC-CE.

[0096] In combination with some embodiments of the second aspect, in some embodiments, the second information or the third information is carried in redefined RRC signaling or newly added RRC signaling.

[0097] In combination with some embodiments of the second aspect, in some embodiments, the terminal transmits the PUSCH based on single downlink control information S-DCI or multiple downlink control information M-DCI.

[0098] In combination with some embodiments of the second aspect, in some embodiments, the terminal transmits the PUSCH based on a single carrier or carrier aggregation CA.

[0099] In the third aspect, an embodiment of the present disclosure proposes a method for sending a power margin report, including: the terminal sends first information to a network device, the first information is used to indicate the power margin information of 1 or N TRPs in a multiple transmitting and receiving point M-TRP scenario, the power margin information includes at least the power margin PH and the configured maximum transmitting power, N is an integer greater than 1; wherein, the power margin information of the 1 or N TRPs is carried in a power margin report PHR, each TRP corresponds to M power margin information, the different power margin information of each TRP has a corresponding relationship with different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer; the network device receives the first information.

[0100] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute optional implementation methods of the first and third aspects.

[0101] In a fifth aspect, an embodiment of the present disclosure proposes a network device, wherein the access network device includes at least one of a transceiver module and a processing module; wherein the access network device is used to execute optional implementation methods of the second and third aspects.

[0102] In a sixth aspect, an embodiment of the present disclosure proposes a terminal, which includes: one or more processors; wherein the terminal is used to execute optional implementation methods of the first and third aspects.

[0103] In a seventh aspect, an embodiment of the present disclosure proposes a network device, which includes: one or more processors; wherein the network device is used to execute optional implementation methods of the second and third aspects.

[0104] In the eighth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the optional implementation of the first and third aspects, and the network device is configured to execute the method described in the optional implementation of the second and third aspects.

[0105] In the ninth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first and third aspects, and the second and third aspects.

[0106] In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and third aspects, and the second and third aspects.

[0107] In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method as described in the first and third aspects, and the optional implementation of the second and third aspects.

[0108] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0109] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0110] The present disclosure provides a method for sending a power headroom report. In some embodiments, the terms "method for sending a power headroom report" and "information processing method" and "communication method" can be used interchangeably.

[0111] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0112] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0113] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0114] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0115] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0116] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0117] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0118] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0119] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0120] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0121] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0122] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0123] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0124] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0125] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0126] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0127] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0128] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0129] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0130] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0131] As shown in FIG1A , a communication system 100 includes a terminal 101 and a core network device 102 .

[0132] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0133] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0134] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0135] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0136] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0137] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0138] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0139] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0140] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0141] In some embodiments, due to high-order modulation and transmission bandwidth configurations, terminals are allowed to reduce their maximum transmit power. For example, for terminals with power classes PC2 and PC3, Tables 1 and 2 define the maximum power reduction (MPR) allowed for channel bandwidths that meet the following two criteria, respectively.

[0142] Table 1

[0143] Table 2

[0144] In some embodiments, the additional emission requirement may be notified to the terminal via network signaling. Each additional emission requirement is associated with a unique network signaling (NS) value, which is indicated by the NR band number of the applicable operating frequency band and the associated value in the field in the radio resource control (RRC) signaling. For example, the NR band number of the applicable operating frequency band and the associated value in the field may be additional spectrum emission.

[0145] Exemplarily, to meet additional requirements, an additional maximum power reduction (A-MPR) is permitted for the maximum transmit power specified in Table 1 or Table 2. Unless otherwise specified, the total reduction in the terminal's maximum transmit power is the maximum of the MPR and the A-MPR. The MPR is as shown in Tables 1 and 2.

[0146] In some embodiments, the terminal is allowed to set its configured maximum transmit power P for the carrier of the serving cell in each time slot. CMAX,f,c .

[0147] Optionally, P CMAX,f,c The value of P CMAX_L,f,c and P CMAX_H,f,c Between. That is, P CMAX_L,f,c ≤P CMAX,f,c ≤P CMAX_H,f,c Among them, P CMAX,f,c is the maximum transmit power, P CMAX_L,f,c is the lower value of the maximum transmit power, P CMAX_H,f,c The high value of the maximum transmit power.

[0148] Optionally, P CMAX_L,f,c Determined based on: P CMAX_L,f,c =MIN{P EMAX,c -ΔT C,c (P PowerClass -ΔP PowerClass )-MAX(MAX(MPR c +ΔMPR c ,A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS ,P-MPR c )}

[0149] Where f represents the carrier frequency, c represents the serving cell, and P EMAX,c Indicates the maximum allowable power of the network device configuration, P PowerClass Indicates the terminal defined power without considering other non-ideal factors (tolerance), ΔP PowerClass Indicates that the maximum power of the terminal is reduced or the power fallback value is configured based on the duty cycle to ensure RF radiation exposure, MPR c Indicates the maximum power reduction due to modulation mode and transmission bandwidth configuration factors, A-MPR c Indicates the additional power backoff required by network signaling to ensure the relevant radiation requirements of different operating frequency bands, ΔT IB,c Indicates the additional power back-off value under multi-carrier, ΔT C,c Indicates the additional power backoff value corresponding to the transmission of special edge configuration, ΔT RxSRS Indicates the terminal power adjustment value related to SRS antenna switching, P-MPR c Indicates the maximum power reduction of power management.

[0150] Optionally, P CMAX_H,f,c Determined based on: P CMAX_H,f,c =MIN{P EMAX,c ,P PowerClass -ΔP PowerClass}.

[0151] In the embodiments of the present disclosure, it is taken into account that the transmit power of the terminal may change based on the terminal implementation, and these operations are transparent to the network device. Therefore, the terminal may report to the network device the instantaneous transmit power of the physical uplink shared channel (PUSCH) transmission. For example, the network device is reported by way of a power headroom report (PHR). The PHR may include power headroom (PH), maximum transmit power PCMAX,f,c, and power-maximum power reduction (P-MPR). Among them, the power headroom reflects the amount of additional transmit power that the terminal can send with reference to the current PUSCH power level, and PCMAX,f,c reflects the maximum power that the terminal can send in this case.

[0152] The current protocol stipulates that P-MPR is only used for the FR2 band, that is, only the PHR sent by the terminal in the FR2 band includes the MPR determined based on the MPE requirements, while the PHR sent by the terminal in the FR1 band does not include the MPR determined based on the SAR requirements.

[0153] Currently, the PHR reported by the terminal includes single-carrier-based PHR and multi-carrier-based PHR.

[0154] FIG1B shows a PHR configuration format for a single carrier, which mainly includes a P information field, an R information field, an MPE information field, a PH information field, and a PCMAX,f,c information field.

[0155] The P information field is used to indicate whether there is an MPR report based on MPE requirements;

[0156] The R information field is a reserved information field, which is mainly used to record the corresponding newly added data when necessary;

[0157] The MPE information field is used to indicate the MPR value based on MPE requirements when the P information field indicates that there is an MPR report based on MPE requirements;

[0158] The PH information field is used to indicate the transmit power headroom that the terminal can send when accessing the primary cell under type 1 (PUSCH).

[0159] The PCMAX,f,c information field is used to indicate the maximum transmit power that the terminal can send.

[0160] Figure 1C shows the PHR configuration format in a multi-carrier case. Among them, C1 to C7 can be used to indicate different carriers. It can be understood that the multi-carrier PHR can be regarded as a combination of multiple single-carrier PHRs. Type 2 can correspond to the physical uplink control channel (PUCCH), and the special cell (SpCell) can include a PCell and a primary secondary cell (PSCell). The serving cell can be a PCell, a secondary cell (SCell), a PSCell, or an SpCell, etc.

[0161] With the development of communication technology, to ensure coverage, when network equipment (such as base stations) has multiple transmission reception points (TRPs), multiple TRPs (Multi-TRPs) or multiple antenna panels can be used to provide services to terminals. In addition, to provide more balanced service quality within the service area, Coordinated Multiple Point transmission (CoMP) technology has been introduced.

[0162] In a CoMP scenario, the antenna array of each TRP can be divided into several relatively independent panels, allowing the overall array configuration and port count to be flexibly adjusted based on deployment scenarios and service requirements. Panels or TRPs can also be connected by optical fiber, enabling more flexible distributed deployment. In the millimeter wave band, as wavelength decreases, the blocking effect caused by obstacles such as people or vehicles becomes more significant. In this case, to ensure link robustness, collaboration between multiple TRPs or panels can be leveraged to transmit / receive from multiple beams at multiple angles, thereby mitigating the adverse effects of blocking effects.

[0163] Based on the mapping of transmitted signal streams to multiple TRPs / panels, coordinated multi-point transmission technology can be categorized as coherent or incoherent. In coherent transmission, each data layer is mapped to multiple TRPs / panels using a weighted vector. In incoherent transmission, each data stream is mapped to only a subset of TRPs / panels. Coherent transmission places higher demands on synchronization between transmission points and the transmission capacity of the backhaul link, making it more sensitive to many non-ideal factors in real-world deployments. In contrast, incoherent transmission is less susceptible to these factors and is therefore a key consideration for multi-point transmission technology. Uplink PUSCH transmissions are sent to the TRPs of multiple base stations. Release 17 primarily standardized coordinated transmission using a time-division multiplexing (TDM) transmission scheme. This scheme uses different transmission opportunities (TOs) in the time domain to send different repetitions of the same PUSCH information to different TRPs of a base station. This approach places relatively low demands on terminal capabilities, does not require support for simultaneous beam transmission, and exhibits significant transmission latency.

[0164] For the uplink, the physical uplink shared channel (PUSCH) for different TRPs may actually pass through channels with very different spatial characteristics. Therefore, it is considered that the Quasi Co-Loacted (QCL) type D of the PUSCH channel in different sending directions is different.

[0165] The above implementation scheme does not take into account the M-TRP scenario, and the uplink is a single TRP (Single-TRP, S-TRP) transmission. Certain embodiments of the present disclosure enhance the M-TRP uplink transmission under a single downlink control information (Single-Downlink Control Information, S-DCI), and the uplink PUSCH transmission is transmitted in the TRP direction of multiple network devices, and the collaborative transmission under the time division multiplexing (Time Division Multiplexing, TDM) transmission mode is standardized. The PUSCH is repeatedly sent to different TRPs of the network device through different transmission opportunities (Transmission Occasion, TO) in the time domain. This method has relatively low requirements on the terminal capability. Each TO only needs to send PUSCH to one TRP, so it is not required to support the ability to send beams simultaneously, and the transmission delay is relatively large.

[0166] In certain embodiments of the present disclosure, it is desired to transmit data to multiple TRPs simultaneously through multiple panels to increase the reliability and throughput of the transmission, and effectively reduce the transmission delay under multiple TRPs, but the terminal is required to have the ability to send multiple beams simultaneously. The transmission of PUSCH can be based on a single physical downlink control channel (Physical Downlink Control Channel, PDCCH), that is, multiple panels or multiple TRPs scheduled by S-DCI, as shown in Figure 1D. Among them, the terminal communicates with TPR1 of the network device through panel1, for example, receives the first precoding indication information (Transmit Precoding Matrix Indicator, TPMI) TPMI1 sent by TPR1, and sends one or more information related to the transport layer to TRP1, and communicates with TPR2 of the network device through panel2, for example, receives the second precoding indication information TPMI2 sent by TPR2, and sends one or more information related to the transport layer to TRP2. It can also be based on multiple panels or multiple TRPs scheduled by different PDCCHs, that is, multiple downlink control information (Multiple-Downlink Control Information, M-DCI), as shown in Figure 1E. Among them, the terminal communicates with TPR1 of the network device through panel1, for example, receives PDCCH1 sent by TRP1 and sends PUSCH1 to TRP1, and communicates with TPR2 of the network device through panel2, for example, receives PDCCH2 sent by TRP2 and sends PUSCH2 to TRP2.

[0167] In the disclosed embodiments, uplink coverage has always been one of the bottlenecks of system performance, affecting signal quality and user experience. Operators, including operators, have a strong demand for enhanced uplink coverage. Currently, NR supports two uplink waveforms: Cyclic Prefix Orthogonal Frequency-Division Multiplexing (CP-OFDM) and Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFTS-OFDM).

[0168] Compared to the CP-OFDM waveform, the peak-to-average power ratio (PAPR) of the DFTS-OFDM waveform is approximately 3dB lower. Due to its lower PAPR, the DFTS-OFDM waveform is more suitable for scenarios with limited uplink coverage. For example, for cell-edge users also in Frequency Range 2 (FR2), the uplink coverage issues of the CP-OFDM waveform are more prominent.

[0169] In related technologies, the CP-OFDM waveform or DFTS-OFDM waveform used by a terminal for uplink transmission is semi-statically configured through Radio Resource Control (RRC) signaling. The waveform used by the terminal for uplink transmission is configured through the "transformPrecoder" parameter in the physical uplink shared channel (PUSCH) configuration parameters. If "transformPrecoder" is configured to "enable", the waveform used by the terminal for uplink transmission is the DFTS-OFDM waveform. If "transformPrecoder" is configured to "disable", the waveform used by the terminal for uplink transmission is the CP-OFDM waveform.

[0170] In some embodiments of the present disclosure, one bit is added to the downlink control information (DCI) to indicate the waveform used by the terminal to send the PUSCH. To support dynamic switching of uplink waveforms, the terminal needs to enhance the relevant reporting information to support the network equipment's scheduling decision for the waveform.

[0171] Based on this, an embodiment of the present disclosure provides a method for sending a power margin report, whereby the terminal reports the power margin information corresponding to different waveforms under different TRPs in a PHR, so that the network device determines the scheduling decision for the transmission waveform of the PUSCH associated with different TRPs based on the power margin information corresponding to different waveforms under different TRPs reported by the terminal, thereby improving the scheduling efficiency.

[0172] The PHR involved in the embodiments of the present disclosure is a Type 1 PHR, which is for PUSCH transmission. The following embodiments of the present disclosure will not be described in detail.

[0173] In the embodiment of the present disclosure, the terminal transmits PUSCH based on S-DCI or M-DCI in the M-TRP scenario. The following embodiments of the present disclosure will not be described in detail.

[0174] FIG2A is an interactive diagram illustrating a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG2A , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0175] Step S2101 , the network device 102 sends second information to the terminal 101 .

[0176] In some embodiments, terminal 101 receives second information.

[0177] In some embodiments, the second information is used to instruct the terminal to report M power headroom information for each of N TRPs, where M is greater than 1.

[0178] Optionally, the M power headroom information for each TRP corresponds to M uplink transmission waveforms. For example, if the uplink transmission waveforms are a CP-OFDM waveform and a DFT-s-OFDM waveform, each TRP corresponds to two power headroom information, one of which corresponds to the CP-OFDM waveform and the other corresponds to the DFT-s-OFDM waveform.

[0179] Optionally, each of the M power headroom information of each TRP includes a power headroom and a configured maximum output power. Optionally, the power headroom information may also be referred to as a PHR.

[0180] In some embodiments, the second information is used to instruct the terminal to report M power headroom information for each of the N TRPs in one PHR. Optionally, the terminal sends a PHR to the network device once, but the one PHR includes M power headroom information for each of the N TRPs, that is, one PHR report includes N×M power headroom information.

[0181] In some embodiments, the name of the second information is not limited, and it can be, for example, "configuration information" or "configuration signaling".

[0182] In some embodiments, the second information is carried in RRC signaling.

[0183] In some embodiments, the second information is carried in redefined RRC signaling or new RRC signaling.

[0184] In one embodiment, the second information instructs the terminal to report the power margin information of two waveforms of PUSCH transmission associated with two TRPs respectively, and supports the terminal to report the power margin information of two waveforms by designing a new twoPHRMode, such as twoPHRMode-R18 signaling.

[0185] Optionally, an example of RRC signaling configuration is as follows:

[0186] Among them, the terminal is configured to report the power headroom information of two waveforms through twoPHRMode-r18 signaling.

[0187] Step S2102 , the terminal 101 sends first information to the network device 102 .

[0188] In some embodiments, network device 102 receives first information.

[0189] In some embodiments, the first information is used to indicate power headroom information of N TRPs.

[0190] In some embodiments, the first information is used to indicate M power headroom information for each of the N TRPs.

[0191] In some embodiments, the first information is used to indicate M power headroom information for each of N TRPs in a PHR report.

[0192] In some embodiments, the first information is used to indicate the power headroom information of M uplink transmission waveforms of PUSCH transmission associated with each TRP in N TRPs in one PHR report. For example, the first information is used to indicate the power headroom information of two uplink transmission waveforms of PUSCH transmission associated with two TRPs in one PHR report, that is, one PHR report includes two power headroom information corresponding to TRP1 and two power headroom information corresponding to TRP2, and the two power headroom information correspond to the CP-OFDM waveform and the DFT-s-OFDM waveform, respectively.

[0193] The following describes how the terminal determines to report the M power headroom information of each TRP in N TRPs and how the M power headroom information of each TRP is determined.

[0194] In some embodiments, the terminal receives the second information sent by the network device, and the second information instructs the terminal to report M power margin information of each TRP in N TRPs, then the terminal determines to report M power margin information of each TRP in N TRPs, that is, the first information is used to indicate the power margin information of N TRPs.

[0195] Optionally, each TRP corresponds to M power headroom information, and the M power headroom information corresponds to M waveforms.

[0196] In some embodiments, the M power headroom information for each TRP is determined based on at least one of the following:

[0197] The currently transmitted PUSCH;

[0198] Reference PUSCH for network equipment configuration;

[0199] The most recently transmitted PUSCH within the time window.

[0200] Optionally, the currently transmitted PUSCH indicates a PUSCH that the terminal is currently transmitting.

[0201] Optionally, the reference PUSCH configured by the network device is configured based on different uplink transmission waveforms. That is, the reference PUSCH associated with each TRP is different under different uplink transmission waveforms.

[0202] Optionally, the most recently transmitted PUSCH within the time window indicates that the terminal has not transmitted a PUSCH at the current moment, but has transmitted a PUSCH within a period of time. Optionally, the PUSCH transmitted within the time window includes a DG PUSCH and a CG PUSCH.

[0203] It is worth noting that the power headroom information involved in the embodiments of the present disclosure is determined based on the PUSCH, which means that the terminal determines the power headroom information based on the power parameters of the PUSCH. Power parameters include maximum transmit power and actual transmit power. For example, the power headroom is determined based on the difference between the maximum transmit power and the actual transmit power.

[0204] Method 1: If the currently transmitted PUSCH and the PUSCH carrying the power headroom information report meet the time requirements, then the M power headroom information of each TRP is determined based on the currently transmitted PUSCH.

[0205] For example, if the currently transmitted PUSCH and the PUSCH carrying the power headroom information report are located in the same time slot, then the M power headroom information of each TRP is determined based on the currently transmitted PUSCH.

[0206] Optionally, the M power headroom information of each TRP includes: first power headroom information and second power headroom information.

[0207] Optionally, the first power headroom information is actual power headroom information determined based on an uplink transmission waveform used by a currently transmitted PUSCH. Optionally, the actual power headroom information indicates that the terminal has performed actual physical channel transmission, and an actual PH is determined by the difference between the maximum transmit power and the actual transmit power of the PUSCH, and the actual power headroom information, i.e., actual PHR, is sent to the network device.

[0208] Optionally, the second power headroom information is virtual power headroom information determined based on the target waveform.

[0209] Optionally, the target waveform represents a waveform to be switched for PUSCH transmission by the terminal. For example, if the waveform currently used by the terminal for PUSCH transmission is a CP-OFDM waveform, the target waveform is a DFT-s-OFDM waveform.

[0210] Optionally, the virtual power headroom information indicates that the terminal calculates virtual power headroom information based on the target waveform using the currently transmitted PUSCH. When the terminal switches to the target waveform for PUSCH transmission, the actual power headroom information of the terminal is not necessarily the same as the virtual power headroom information.

[0211] In the embodiment of the present disclosure, if the number of TRPs is 2, the first information is used to indicate 2 actual power headroom information and 2 virtual power headroom information. Each TRP corresponds to 1 actual power headroom information and 1 virtual power headroom information.

[0212] Method 2: If the currently transmitted PUSCH and the PUSCH carrying the power headroom information report do not meet the time requirement, or the terminal is not currently transmitting the PUSCH, the M power headroom information of each TRP is determined based on the reference PUSCH.

[0213] Optionally, if the terminal does not actually transmit a PUSCH, the power headroom information after the PUSCH reference (or virtual) transmission is reported. For example, if there is no PUSCH transmission, the terminal calculates a power headroom information according to a predefined PUSCH format and sends it to the network device, namely, a virtual PHR.

[0214] Optionally, M virtual power headroom information is calculated and determined based on the reference PUSCH under M waveforms. For example, one virtual power headroom information is calculated based on the reference PUSCH under the DFT-s-OFDM waveform, and one virtual power headroom information is calculated based on the reference PUSCH under the CP-OFDM waveform.

[0215] In the embodiment of the present disclosure, if the number of TRPs is 2, the first information is used to indicate 4 virtual power headroom information. Each TRP corresponds to 2 virtual power headroom information.

[0216] Method 3: If there is a PUSCH transmission in the time window, the PUSCH most recently transmitted in the time window is used as a reference PUSCH, and M virtual power headroom information is calculated and determined under M waveforms based on the PUSCH most recently transmitted in the time window.

[0217] Mode 4: The N power headroom information are virtual power headroom information determined based on different uplink transmission waveform configurations of the currently transmitted PUSCH.

[0218] Optionally, when calculating the virtual power headroom information, it may be determined based on parameters in the actual PUSCH scheduling configuration.

[0219] In some embodiments, the M power margin information corresponding to each TRP indicated by the first information includes configuring the maximum transmit power.

[0220] Optionally, the configured maximum transmit power is determined based on MPR, P-MPR, and A-MPR.

[0221] Optionally, the lower value of the configured maximum transmit power is determined based on the following method: CMAX_L,f,c =MIN{P EMAX,c -ΔT C,c (P PowerClass -ΔP PowerClass )-MAX(MAX(MPR c +ΔMPR c ,A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS ,P-MPR c )}

[0222] Optionally, the upper value of the maximum transmit power is determined based on the following method: CMAX_H,f,c =MIN{P EMAX,c ,P PowerClass -ΔP PowerClass}.

[0223] Where f represents the carrier frequency, c represents the serving cell, and P EMAX,c Indicates the maximum allowable power of the network device configuration, P PowerClass Indicates the terminal defined power without considering other non-ideal factors (tolerance), ΔP PowerClass Indicates that the maximum power of the terminal is reduced or the power fallback value is set based on the dutycycle configuration to ensure RF radiation exposure. c Indicates the maximum power reduction due to modulation mode and transmission bandwidth configuration factors, A-MPR c Indicates the additional power backoff required by network signaling to ensure the relevant radiation requirements of different operating frequency bands, ΔT IB,c Indicates the additional power back-off value under multi-carrier, ΔT C,c Indicates the additional power backoff value corresponding to the transmission of special edge configuration, ΔT RxSRS Indicates the terminal power adjustment value related to SRS antenna switching, P-MPR c Indicates the maximum power reduction of power management.

[0224] Optionally, the actual maximum transmit power of the terminal is between a low value of the maximum transmit power and a high value of the maximum transmit power, and is determined autonomously by the terminal.

[0225] In some embodiments, when calculating the power headroom information of a DFT-s-OFDM waveform, a reasonable default / reference frequency domain resource assignment (FDRA) configuration needs to be used. Optionally, the default / reference FDRA is a continuous FDRA assignment.

[0226] Optionally, if the first FDRA of the PUSCH of the CP-OFDM waveform is configured as continuous, the power headroom information of the DFT-s-OFDM waveform is calculated based on the second FDRA. Optionally, the second FDRA is the same as the first FDRA. Optionally, the second FDRA is determined based on a preconfiguration, and the second FDRA is a continuous frequency domain resource allocation.

[0227] Optionally, if the first FDRA of the PUSCH of the CP-OFDM waveform is configured as discontinuous, the power headroom information of the DFT-s-OFDM waveform is calculated based on the second FDRA. Optionally, the second FDRA is determined based on the first FDRA, and the second FDRA is a continuous frequency domain resource allocation, that is, the first FDRA is equivalently converted to a continuous second FDRA. Optionally, the second FDRA is determined based on a preconfiguration, and the second FDRA is a continuous frequency domain resource allocation.

[0228] In some embodiments, the first information includes M power headroom information for each of the N TRPs. Optionally, the current MAC-CE cannot support reporting of M power headroom information for each of the N TRPs, and therefore it is necessary to redesign the MAC-CE that carries multiple power headroom information for multiple TRPs.

[0229] Optionally, the first information is carried in a redefined MAC-CE or a newly added MAC-CE.

[0230] In some embodiments, if the terminal reports two power headroom information associated with each of the two TRPs in one PHR report, that is, one PHR report includes four power headroom information, then the format of the MAC-CE carrying the PHR is shown in Figure 2B. Among them, one PHR report includes two sets of power headroom information, one for the CP-OFDM waveform and the other for the DFT-s-OFDM waveform. In the power headroom information corresponding to the CP-OFDM waveform, power headroom 1 and maximum transmit power 1 are the power headroom information corresponding to TRP1, and power headroom 2 and maximum transmit power 1 are the power headroom information corresponding to TRP2. In the power headroom information corresponding to the DFT-s-OFDM waveform, power headroom 3 and maximum transmit power 2 are the power headroom information corresponding to TRP1. Power headroom 4 and maximum transmit power 2 are the power headroom information corresponding to TRP2.

[0231] In some embodiments, the terminal reports a PHR in a CA / DC scenario. The format of a PHR report for each carrier in the CA / DC scenario is shown in FIG2B .

[0232] In some embodiments, the MAC-CE format for PHR reporting of multiple carriers in a CA / DC scenario is shown in Figure 2C , where the power headroom information of a special cell or other MAC entity is reported via a Type 2 PHR.

[0233] Optionally, as shown in Figure 2C, two power headroom information corresponding to different transmission waveforms of multiple carriers under different TRPs are reported in one PHR report. Among them, one PHR report includes n groups of power headroom information, and each group of power headroom information in the n groups of power headroom information corresponds to one carrier. Taking the first group of power headroom information as an example, power headroom 11, power headroom 12 and maximum transmit power 10 correspond to the power headroom information of the CP-OFDM waveform, and power headroom 13, power headroom 14 and maximum transmit power 11 correspond to the power headroom information of the DFT-s-OFDM waveform. In the power headroom information corresponding to the CP-OFDM waveform, power headroom 11 and maximum transmit power 10 are the power headroom information corresponding to TRP1, and power headroom 12 and maximum transmit power 10 are the power headroom information corresponding to TRP2. In the power headroom information corresponding to the DFT-s-OFDM waveform, power headroom 13 and maximum transmit power 11 are the power headroom information corresponding to TRP1. The power headroom 14 and the maximum transmit power 11 are the power headroom information corresponding to TRP2.

[0234] In some embodiments, the MAC-CE format for PHR reporting of multiple carriers in a CA / DC scenario is shown in Figure 2D , where the power headroom information of each carrier is reported via a Type 1 PHR.

[0235] In some embodiments, the terminal 101 receives the second information, but the second information is not enabled, and the first information is used to indicate 1 power margin information of each TRP in N TRPs.

[0236] In some embodiments, if the terminal 101 does not receive the second information, the first information is used to indicate 1 power margin information of each TRP in the N TRPs.

[0237] In some embodiments, the uplink transmission waveform corresponding to one power headroom information is determined by predefinition or RRC signaling configuration.

[0238] In the first method, the uplink transmission waveform corresponding to one power headroom information is the target waveform.

[0239] Optionally, the first information includes power headroom information of the target waveform. For example, if the terminal currently performs PUSCH transmission under the CP-OFDM waveform and the target waveform is a DFT-s-OFDM waveform, the first information includes power headroom information corresponding to the DFT-s-OFDM waveform of each TRP in N TRPs. For example, the first information includes power headroom information corresponding to the DFT-s-OFDM waveform of TRP1 and power headroom information corresponding to the DFT-s-OFDM waveform of TRP2.

[0240] Optionally, the terminal sends the first information before receiving the first command.

[0241] Optionally, the first command is used to instruct the terminal to switch the uplink transmission waveform. Exemplarily, if the waveform currently used by the terminal for PUSCH transmission is a CP-OFDM waveform, the first command is used to instruct the terminal to switch to a DFT-s-OFDM waveform.

[0242] Optionally, the first command is a dynamic waveform switching (Dynamic WaveShaping, DWS) signaling.

[0243] Optionally, the first command is carried in RRC, MAC-CE or DCI.

[0244] Optionally, the terminal sends the first information before the waveform is switched.

[0245] Mode 2: The uplink transmission waveform corresponding to one piece of power headroom information is the waveform actually used by the terminal to transmit the PUSCH.

[0246] Optionally, the first information includes power headroom information of a current waveform used by the terminal to actually transmit the PUSCH. For example, if the terminal currently transmits the PUSCH under a CP-OFDM waveform, the first information includes power headroom information corresponding to the CP-OFDM waveform. For example, the first information includes power headroom information corresponding to the CP-OFDM waveform for TRP1 and power headroom information corresponding to the CP-OFDM waveform for TRP2.

[0247] Optionally, after receiving the first command, the terminal sends the first information.

[0248] Optionally, the triggering timing for the terminal to send the first information is DWS switching.

[0249] In some embodiments, the terminal reports one power headroom information corresponding to each TRP in multiple TRPs in one PHR report. Taking the number of TRPs as 2 as an example, the MAC-CE format carrying the PHR report is shown in Figure 2E. Among them, power headroom 1 and maximum transmit power 1 are the power headroom information corresponding to TRP1, and power headroom 2 and maximum transmit power 1 are the power headroom information corresponding to TRP2.

[0250] In some embodiments, the terminal reports a PHR in a CA / DC scenario. The format of a PHR report for each carrier in the CA / DC scenario is shown in FIG2E .

[0251] In some embodiments, the MAC-CE format for PHR reporting of multiple carriers in a CA / DC scenario is shown in Figure 2F , where the power headroom information of a special cell or other MAC entity is reported via a Type 2 PHR.

[0252] Optionally, as shown in Figure 2F, a single PHR report contains power headroom information corresponding to a single transmission waveform for multiple carriers at different TRPs. A single PHR report includes n sets of power headroom information, each corresponding to the same uplink transmission waveform for a single carrier. Taking the first set of power headroom information as an example, a power headroom of 11 and a maximum transmit power of 10 represent the power headroom information for TRP1, while a power headroom of 12 and a maximum transmit power of 10 represent the power headroom information for TRP2.

[0253] In some embodiments, the MAC-CE format for PHR reporting of multiple carriers in a CA / DC scenario is shown in FIG2G , where the power headroom information of each carrier is reported via a Type 1 PHR.

[0254] The communication method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2102. For example, step S2101 may be implemented as an independent embodiment, and step S2102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0255] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0256] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0257] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2A .

[0258] FIG2H is an interactive diagram illustrating a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG2H , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0259] Step S2201 , the network device 102 sends third information to the terminal 101 .

[0260] In some embodiments, terminal 101 receives third information.

[0261] In some embodiments, the third information is used to instruct the terminal to report M pieces of power headroom information.

[0262] In some embodiments, M power headroom information correspond to M TRPs.

[0263] In some embodiments, M power headroom information corresponds to 1 TRP. Optionally, M power headroom information corresponds to M uplink transmission waveforms.

[0264] In some embodiments, the name of the third information is not limited, and it can be, for example, "configuration information" or "configuration signaling".

[0265] In some embodiments, the third information is carried in RRC signaling.

[0266] In some embodiments, the third information is carried in redefined RRC signaling or new RRC signaling.

[0267] Step S2202 , the terminal 101 sends first information to the network device 102 .

[0268] In some embodiments, network device 102 receives first information.

[0269] In some embodiments, the first information is used to indicate M power headroom information corresponding to M TRPs. For example, the first information is used to indicate the power headroom information corresponding to the uplink transmission waveform used by TRP1 for the currently transmitted PUSCH, and the power headroom information corresponding to the uplink transmission waveform used by TRP2 for the currently transmitted PUSCH. For another example, the first information is used to indicate the power headroom information corresponding to the target uplink transmission waveform of TRP1, and the power headroom information corresponding to the target waveform of TRP2.

[0270] In some embodiments, the first information is used to indicate M power headroom information corresponding to one TRP. Optionally, the M power headroom information corresponds to M uplink transmission waveforms. For example, the first information is used to indicate the power headroom information corresponding to the uplink transmission waveform used by TRP1 for the currently transmitted PUSCH, and the power headroom information corresponding to the target uplink transmission waveform of TRP1. For another example, the first information is used to indicate the power headroom information corresponding to the target uplink transmission waveform of TRP1.

[0271] In some embodiments, a TRP is determined based on at least one of the following:

[0272] TRP of the actual transmitted PUSCH;

[0273] Predefined TRPs;

[0274] The TRP corresponding to the transport layer number 1;

[0275] Resource blocks are allocated with consecutive TRPs;

[0276] The channel condition meets the TRP threshold.

[0277] In some embodiments, the first information is used to indicate M power headroom information corresponding to 1 TRP.

[0278] Optionally, the first information is carried in a redefined MAC-CE or a newly added MAC-CE.

[0279] In some embodiments, if the terminal reports two power headroom information associated with one TRP in one PHR report, the format of the MAC-CE carrying the PHR is shown in Figure 2I. One PHR report includes two power headroom information corresponding to different transmission waveforms for one TRP.

[0280] In some embodiments, the terminal reports a PHR in a CA / DC scenario. The format of a PHR report for each carrier in the CA / DC scenario is shown in FIG2I .

[0281] In some embodiments, the MAC-CE format for PHR reporting of multiple carriers in a CA / DC scenario is shown in FIG2J , where the power headroom information of a special cell or other MAC entity is reported via a Type 2 PHR.

[0282] In some embodiments, the MAC-CE format for PHR reporting of multiple carriers in a CA / DC scenario is shown in FIG2K , where the power headroom information of each carrier is reported via a Type 1 PHR.

[0283] In some embodiments, the terminal 101 receives the third information, but the third information is not enabled, then the first information is used to indicate 1 power margin information of 1 TRP.

[0284] In some embodiments, if the terminal 101 does not receive the third information, the first information is used to indicate 1 power margin information of 1 TRP.

[0285] In some embodiments, the uplink transmission waveform corresponding to one power headroom information is determined by predefinition or RRC signaling configuration.

[0286] In the first method, the uplink transmission waveform corresponding to one power headroom information is the target waveform.

[0287] Optionally, the first information includes power headroom information of the target waveform. For example, if the terminal is currently transmitting PUSCH using a CP-OFDM waveform and the target waveform is a DFT-s-OFDM waveform, the first information includes power headroom information corresponding to the DFT-s-OFDM waveform of one TRP. For example, the first information includes power headroom information corresponding to the DFT-s-OFDM waveform of TRP1.

[0288] Optionally, the terminal sends the first information before receiving the first command.

[0289] Optionally, the first command is used to instruct the terminal to switch the uplink transmission waveform. Exemplarily, if the waveform currently used by the terminal for PUSCH transmission is a CP-OFDM waveform, the first command is used to instruct the terminal to switch to a DFT-s-OFDM waveform.

[0290] Optionally, the first command is a dynamic waveform switching (Dynamic WaveShaping, DWS) signaling.

[0291] Optionally, the first command is carried in RRC, MAC-CE or DCI.

[0292] Optionally, the terminal sends the first information before the waveform is switched.

[0293] Mode 2: The uplink transmission waveform corresponding to one piece of power headroom information is the waveform actually used by the terminal to transmit the PUSCH.

[0294] Optionally, the first information includes power headroom information of a current waveform used by the terminal to actually transmit the PUSCH. For example, if the terminal currently transmits the PUSCH under a CP-OFDM waveform, the first information includes power headroom information corresponding to the CP-OFDM waveform. For example, the first information includes power headroom information corresponding to the CP-OFDM waveform for TRP1.

[0295] Optionally, after receiving the first command, the terminal sends the first information.

[0296] Optionally, the triggering timing for the terminal to send the first information is DWS switching.

[0297] In some embodiments, the terminal reports one power headroom information corresponding to one TRP in one PHR report, and the MAC-CE format carrying the PHR report is shown in FIG1B .

[0298] In some embodiments, the terminal reports a PHR in a CA / DC scenario, and the format of the MAC-CE that carries the PHR report is shown in FIG1C .

[0299] The communication method involved in the embodiment of the present disclosure may include at least one of steps S2201 and S2202. For example, step S2201 may be implemented as an independent embodiment, and step S2202 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0300] In some embodiments, step S2201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0301] In some embodiments, step S2202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0302] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2H .

[0303] FIG3A is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG3A , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0304] Step S3101, obtain second information.

[0305] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0306] Optionally, the second information is used to instruct the terminal to report M power headroom information of each TRP in N TRPs, where M is greater than 1.

[0307] In some embodiments, the terminal 101 receives the second information sent by the network device 102, but is not limited thereto and may also receive the second information sent by other entities.

[0308] In some embodiments, terminal 101 obtains second information specified by the protocol.

[0309] In some embodiments, terminal 101 obtains the second information from upper layer(s).

[0310] In some embodiments, terminal 101 performs processing to obtain the second information.

[0311] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the second information, or the above function is default or acquiescent.

[0312] Step S3102, sending the first information.

[0313] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0314] In some embodiments, the first information is used to indicate M power headroom information for each of the N TRPs.

[0315] In some embodiments, the terminal 101 sends the first information to the network device 102, but is not limited thereto and the first information may also be sent to other entities.

[0316] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3102. For example, step S3101 may be implemented as an independent embodiment, and step S3102 may be implemented as an independent embodiment.

[0317] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0318] In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0319] FIG3B is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG3B , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0320] Step S3201, obtain third information.

[0321] The optional implementation of step S3201 can refer to the optional implementation of step S2201 in Figure 2H and other related parts in the embodiment involved in Figure 2H, which will not be repeated here.

[0322] In some embodiments, the third information is used to instruct the terminal to report M pieces of power headroom information.

[0323] In some embodiments, the terminal 101 receives the third information sent by the network device 102, but is not limited thereto and may also receive the third information sent by other entities.

[0324] In some embodiments, terminal 101 obtains third information specified by the protocol.

[0325] In some embodiments, terminal 101 obtains the third information from upper layer(s).

[0326] In some embodiments, terminal 101 performs processing to obtain the third information.

[0327] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the third information, or the above function is default or by default.

[0328] Step S3202, sending the first information.

[0329] In some embodiments, the first information is used to indicate M power headroom information corresponding to 1 TRP.

[0330] In some embodiments, the terminal 101 sends the first information to the network device 102, but is not limited thereto and the first information may also be sent to other entities.

[0331] The optional implementation of step S3202 can refer to the optional implementation of step S2202 in Figure 2H and other related parts in the embodiment involved in Figure 2H, which will not be repeated here.

[0332] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3201 and S3202. For example, step S3201 may be implemented as an independent embodiment, and step S3202 may be implemented as an independent embodiment.

[0333] In some embodiments, step S3201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0334] In some embodiments, step S3202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0335] FIG3C is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG3C , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0336] Step S3301: Receive a first command.

[0337] The optional implementation of step S3301 can refer to the optional implementation of step S2102 in Figure 2A and other related parts of the embodiment involved in step S2202 in Figure 2H, which will not be repeated here.

[0338] In some embodiments, the first command is used to instruct the terminal to switch waveforms.

[0339] Step S3302, sending the first information.

[0340] The optional implementation of step S3302 can refer to the optional implementation of step S2102 in Figure 2A, step S2202 in Figure 2H, and other related parts in the embodiments involved in Figures 2A and 2H, which will not be repeated here.

[0341] In some embodiments, the first information is used to indicate the power margin information corresponding to the target waveform of the PUSCH transmission associated with each TRP; or the first information is used to indicate the power margin information corresponding to the waveform of the currently transmitted PUSCH associated with each TRP.

[0342] The communication method involved in the embodiment of the present disclosure may include at least one of steps S3301 and S3302. For example, step S3301 may be implemented as an independent embodiment, and step S3302 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0343] In some embodiments, steps S3301 and S3302 may be swapped in order.

[0344] In some embodiments, step S3301 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0345] In some embodiments, step S3302 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0346] FIG3D is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG3D , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0347] Step S3401, sending the first information.

[0348] The optional implementation of step S3401 can refer to the optional implementation of step S2102 in Figure 2A, step S2202 in Figure 2H, and other related parts in the embodiments involved in Figures 2A and 2H, which will not be repeated here.

[0349] In some embodiments, the first information is used to indicate power headroom information of 1 or N TRPs in an M-TRP scenario.

[0350] In some embodiments, the method further includes: receiving second information, the second information being used to instruct the terminal to report M power margin information of each TRP in N TRPs, the M power margin information of each TRP corresponding to M uplink transmission waveforms, and M being greater than 1.

[0351] In some embodiments, the M power headroom information for each TRP is determined based on at least one of the following: the currently transmitted PUSCH; the reference PUSCH configured by the network device; and the most recently transmitted PUSCH within the time window.

[0352] In some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report meet the time requirements, and the M power margin information of each TRP is determined based on the PUSCH currently transmitted by each TRP; the M power margin information of each TRP includes: first power margin information, the first power margin information is the actual power margin information determined based on the uplink transmission waveform used by the currently transmitted PUSCH; second power margin information, the second power margin information is the virtual power margin information determined based on the target waveform; the target waveform is the waveform to be switched for the terminal to transmit the PUSCH.

[0353] In some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report do not meet the time requirements, or the terminal is not currently transmitting the PUSCH, and the M power margin information of each TRP is determined based on the reference PUSCH, and the reference PUSCH is configured based on different uplink transmission waveforms; the M power margin information is M virtual power margin information determined based on different uplink transmission waveform configurations of the reference PUSCH.

[0354] In some embodiments, the M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the currently transmitted PUSCH.

[0355] In some embodiments, there is a transmitted PUSCH in the time window, and the reference PUSCH is the most recently transmitted PUSCH in the time window.

[0356] In some embodiments, the M power margin information corresponding to each TRP includes a maximum transmit power, which is determined based at least on the maximum power backoff MPR of the terminal, the power management maximum power backoff P-MPR, and the additional maximum power backoff A-MPR.

[0357] In some embodiments, the uplink transmission waveform is a discrete Fourier transform orthogonal frequency division multiplexing DFT-s-OFDM waveform, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the continuous frequency domain resource allocation FDRA configuration.

[0358] In some embodiments, the uplink transmission waveform is a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, the first FDRA allocation corresponding to the CP-OFDM waveform is continuous or discontinuous, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the second FDRA configuration; the second FDRA is determined based on the first FDRA or based on a predefined reference configuration, and the second FDRA is a continuous frequency domain resource allocation.

[0359] In some embodiments, the method further includes: receiving third information, where the third information is used to instruct the terminal to report M pieces of power headroom information.

[0360] In some embodiments, the M power headroom information corresponds to one TRP, and the first information includes the M power headroom information corresponding to one TRP;

[0361] A TRP is determined based on at least one of the following methods: the TRP of the actual PUSCH transmission; the predefined TRP; the TRP corresponding to the number of transmission layers being 1; the TRP with continuous resource block allocation; and the TRP when the channel condition meets the threshold.

[0362] In some embodiments, the second information or the third information is not enabled, or the second information is not configured, or the third information is not configured; the first information is used to indicate 1 power margin information of each TRP in 1 or N TRPs.

[0363] In some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the target waveform, and the target waveform is the waveform to be switched for the terminal to transmit PUSCH; sending the first information includes: sending the first information before receiving the first command; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0364] In some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the waveform used for actual transmission of PUSCH; sending the first information includes: receiving the first command, sending the first information; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0365] In some embodiments, the first information is carried in a redefined medium access control element MAC-CE, or a newly added MAC-CE.

[0366] In some embodiments, the second information or the third information is carried in redefined RRC signaling or newly added RRC signaling.

[0367] In some embodiments, the terminal transmits the PUSCH based on single downlink control information S-DCI or multiple downlink control information M-DCI.

[0368] In some embodiments, the terminal transmits the PUSCH based on a single carrier or carrier aggregation (CA).

[0369] In the embodiment of the present disclosure, step S3401 may be combined with step S3102 of FIG. 3A , and step S3401 may be combined with step S3201 of FIG. 3B .

[0370] FIG4A is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG4A , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0371] Step S4101, sending the second information.

[0372] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0373] Optionally, the second information is used to instruct the terminal to report M power headroom information of each TRP in N TRPs, where M is greater than 1.

[0374] In some embodiments, the network device 102 sends the second information to the terminal 101, but is not limited thereto and may also send the second information to other entities.

[0375] Step S4102, obtaining first information.

[0376] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0377] In some embodiments, the first information is used to indicate M power headroom information for each of the N TRPs.

[0378] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4102. For example, step S4101 may be implemented as an independent embodiment, and step S4102 may be implemented as an independent embodiment.

[0379] In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0380] In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0381] FIG4B is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG4B , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0382] Step S4201, sending the third information.

[0383] The optional implementation of step S4201 can refer to the optional implementation of step S2201 in Figure 2H and other related parts in the embodiment involved in Figure 2H, which will not be repeated here.

[0384] In some embodiments, the third information is used to instruct the terminal to report M pieces of power headroom information.

[0385] Step S4202, obtaining first information.

[0386] In some embodiments, the first information is used to indicate M power headroom information corresponding to 1 TRP.

[0387] The optional implementation of step S4202 can refer to the optional implementation of step S2202 in Figure 2H and other related parts in the embodiment involved in Figure 2H, which will not be repeated here.

[0388] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4201 and S4202. For example, step S4201 may be implemented as an independent embodiment, and step S4202 may be implemented as an independent embodiment.

[0389] In some embodiments, step S4201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0390] In some embodiments, step S4202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0391] FIG4C is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG4C , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0392] Step S4301: Send the first command.

[0393] The optional implementation of step S4301 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2H, which will not be repeated here.

[0394] In some embodiments, the first command is used to instruct the terminal to switch waveforms.

[0395] Step S4302, receiving first information.

[0396] The optional implementation of step S4302 can refer to the optional implementation of step S2102 in Figure 2A, step S3102 in Figure 2H, and other related parts in the embodiments involved in Figures 2 and 2H, which will not be repeated here.

[0397] In some embodiments, the first information is used to indicate the power margin information corresponding to the target waveform of the PUSCH transmission associated with each TRP; or the first information is used to indicate the power margin information corresponding to the waveform of the currently transmitted PUSCH associated with each TRP.

[0398] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4301 and S4302. For example, step S4301 may be implemented as an independent embodiment, and step S4302 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0399] In some embodiments, steps S4301 and S4302 may be swapped in order.

[0400] In some embodiments, step S4301 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0401] In some embodiments, step S4302 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0402] FIG4D is a flow chart of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG4D , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0403] Step S4401, receiving first information.

[0404] The optional implementation of step S4401 can refer to the optional implementation of step S2102 in Figure 2A, step S2202 in Figure 2H, and other related parts in the embodiments involved in Figures 2A and 2H, which will not be repeated here.

[0405] In some embodiments, the first information is used to indicate power headroom information of 1 or N TRPs in an M-TRP scenario.

[0406] In some embodiments, the method further includes: sending second information, the second information being used to instruct the terminal to report M power headroom information of each TRP in N TRPs, the M power headroom information of each TRP corresponding to M uplink transmission waveforms, and M being greater than 1.

[0407] In some embodiments, the M power headroom information for each TRP is determined based on at least one of the following: the currently transmitted PUSCH; the reference PUSCH configured by the network device; and the most recently transmitted PUSCH within the time window.

[0408] In some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report meet the time requirements, and the M power margin information of each TRP is determined based on the PUSCH currently transmitted by each TRP; the M power margin information of each TRP includes: first power margin information, the first power margin information is the actual power margin information determined based on the uplink transmission waveform used by the currently transmitted PUSCH; second power margin information, the second power margin information is the virtual power margin information determined based on the target waveform; the target waveform is the waveform to be switched for the terminal to transmit the PUSCH.

[0409] In some embodiments, the currently transmitted PUSCH and the PUSCH carrying the power margin information report do not meet the time requirements, or the terminal is not currently transmitting the PUSCH, and the M power margin information of each TRP is determined based on the reference PUSCH, and the reference PUSCH is configured based on different uplink transmission waveforms; the M power margin information is M virtual power margin information determined based on different uplink transmission waveform configurations of the reference PUSCH.

[0410] In some embodiments, the M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the currently transmitted PUSCH.

[0411] In some embodiments, there is a transmitted PUSCH in the time window, and the reference PUSCH is the most recently transmitted PUSCH in the time window.

[0412] In some embodiments, the M power margin information corresponding to each TRP includes a maximum transmit power, which is determined based at least on the maximum power backoff MPR of the terminal, the power management maximum power backoff P-MPR, and the additional maximum power backoff A-MPR.

[0413] In some embodiments, the uplink transmission waveform is a discrete Fourier transform orthogonal frequency division multiplexing DFT-s-OFDM waveform, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the continuous frequency domain resource allocation FDRA configuration.

[0414] In some embodiments, the uplink transmission waveform is a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, the first FDRA allocation corresponding to the CP-OFDM waveform is continuous or discontinuous, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the second FDRA configuration; the second FDRA is determined based on the first FDRA or based on a predefined reference configuration, and the second FDRA is a continuous frequency domain resource allocation.

[0415] In some embodiments, the method further includes: sending third information, where the third information is used to instruct the terminal to report M pieces of power headroom information.

[0416] In some embodiments, the M power headroom information corresponds to one TRP, and the first information includes the M power headroom information corresponding to one TRP;

[0417] A TRP is determined based on at least one of the following methods: the TRP of the actual PUSCH transmission; the predefined TRP; the TRP corresponding to the number of transmission layers being 1; the TRP with continuous resource block allocation; and the TRP when the channel condition meets the threshold.

[0418] In some embodiments, the second information or the third information is not enabled, or the second information is not configured, or the third information is not configured; the first information is used to indicate 1 power margin information of each TRP in 1 or N TRPs.

[0419] In some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the target waveform, and the target waveform is the waveform to be switched for the terminal to transmit PUSCH; receiving the first information includes: receiving the first information before sending the first command; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0420] In some embodiments, the uplink transmission waveform corresponding to one power margin information of each TRP is the waveform used for actual transmission of PUSCH; receiving the first information includes: sending a first command, receiving the first information; the first command is used to instruct the terminal to switch the uplink transmission waveform.

[0421] In some embodiments, the first information is carried in a redefined medium access control element MAC-CE, or a newly added MAC-CE.

[0422] In some embodiments, the second information or the third information is carried in redefined RRC signaling or newly added RRC signaling.

[0423] In some embodiments, the terminal transmits the PUSCH based on single downlink control information S-DCI or multiple downlink control information M-DCI.

[0424] In some embodiments, the terminal transmits the PUSCH based on a single carrier or carrier aggregation (CA).

[0425] In the embodiment of the present disclosure, step S4401 may be combined with step S4102 of FIG. 4A , and step S4401 may be combined with step S4201 of FIG. 4B .

[0426] FIG5 is an interactive diagram of a method for sending a power headroom report according to an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure relates to a method for sending a power headroom report, the method comprising:

[0427] Step S5101: Terminal 101 sends first information to network device 102.

[0428] The optional implementation of step S5101 can be found in the optional implementation of step S2102 in Figure 2A, step S2202 in Figure 2H, step S3102 in Figure 3A, step S4102 in Figure 4A, and other related parts in the embodiments involved in Figures 2A, 2H, 3A, and 4A, which will not be repeated here.

[0429] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0430] The present disclosure also provides a method for sending a power headroom report, including:

[0431] The terminal reports auxiliary information for uplink waveform switching through the PHR. Consider enhancing the corresponding configuration, including:

[0432] In some embodiments, the M-TRP scenarios considered include an S-DCI-based M-TRP scenario and an M-DCI-based M-TRP scenario, both of which currently support simultaneous reporting of two PHs;

[0433] Alt.1: Configure RRC signaling to simultaneously report the PH information of two waveforms (CP-OFDM & DFT-s-OFDM) of PUSCH transmission associated with different TRPs;

[0434] Optionally, if you disable this configuration, you can fall back to Alt.2 or Alt.3 by default.

[0435] In some embodiments, four PH reports are configured, including:

[0436] Case 1: When there is actual PUSCH transmission corresponding to different TRPs, it is necessary to calculate and report two actual PHs based on the current PUSCH waveform, and calculate and report another two virtual PHs based on the target waveform; a total of 2 actual PHs and 2 virtual PHs.

[0437] Case 2: In the case where there is no actual PUSCH transmission, the four virtual PHs calculated based on different waveforms can be calculated and reported based on the reference PUSCH corresponding to different TRPs or the previously scheduled PUSCH.

[0438] Case 1: The reference PUSCH calculation can be configured based on two different waveforms.

[0439] Case 2: If there is a previous scheduled PUSCH transmission within a certain time window, the PUSCH scheduling parameters can be used as a reference. PUSCH is calculated and reported separately based on two different waveforms.

[0440] In some embodiments, Virtual PHR computational enhancements include:

[0441] Report Pcmax. The calculation of Pcmax takes into account MPR, P-MPR, and A-MPR.

[0442] Use actual PUSCH scheduling configuration;

[0443] Use the reference configuration and the configuration information corresponding to the previously scheduled PUSCH;

[0444] For DFT-s-OFDM PH calculation, it is necessary to use reasonable default / reference RA configuration and other information settings. If the corresponding CP-OFDM PUSCH RA configuration is discontinuous, the DFT-S-OFDM corresponding PH calculation can be equivalent to continuous RA allocation or the reference configuration of continuous RA allocation can be used.

[0445] Alt.2: Supports PHR reporting before DWS switching takes effect, configured through pre-defined or RRC signaling, and only reports the PH information of the target waveform; a total of 2 PHs are reported.

[0446] Alt.3: Supports PHR reporting after DWS switching, configured through predefined or RRC signaling or triggered by a new PHR, and only reports the PHR information of the current waveform; a total of 2 PHs are reported.

[0447] Optionally, the triggering mode is DWS switching.

[0448] Alt.4: If the network device configuration can only report 2 PHs, you can also report the PHs of Alt.1-Alt.3 above corresponding to the PUSCH transmission associated with one of the TRPs.

[0449] In some embodiments, a method of selecting one of the TRPs:

[0450] 1) actual transmitted TRP;

[0451] 2) Predefined TRP, such as CORESETPoolIndex0;

[0452] 3) TRP transmission corresponding to RANK=1;

[0453] 4) RBs are assigned consecutive TRPs;

[0454] 5) TRP with better / poor channel conditions;

[0455] In some embodiments, a new MAC-CE and a new twoPHRMode signaling need to be introduced to support Alt.1-Alt.4.

[0456] Optionally, for specific MAC-CE designs, reference may be made to FIG. 1B , FIG. 1C , FIG. 2B-2G , and FIG. 2I-2K .

[0457] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0458] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0459] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0460] Figure 6A is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 6A, the terminal 6100 may include: a transceiver module 6101. In some embodiments, the above-mentioned transceiver module is used for the transceiver module, which is used to send the first information, and the first information is used to indicate the power margin information of 1 or N TRPs in a multi-transmitting and receiving point M-TRP scenario. The power margin information at least includes the power margin PH and the configured maximum transmit power, and N is an integer greater than 1; wherein, the power margin information of 1 or N TRPs is carried in a power margin report PHR, and each TRP corresponds to M power margin information. The different power margin information of each TRP has a corresponding relationship with different uplink transmission waveforms. The uplink transmission waveform is used to transmit PUSCH, and M is a positive integer. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, steps S2101 and S2102, but not limited to this) performed by the terminal 101 in any of the above methods, which will not be repeated here.

[0461] FIG6B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in FIG6B , the network device 6200 may include: a transceiver module 6201. In some embodiments, the transceiver module is used to send a first information, and the first information is used to indicate the power margin information of 1 or N TRPs in a multi-transmitting and receiving point M-TRP scenario. The power margin information includes at least a power margin PH and a configured maximum transmit power, and N is an integer greater than 1; wherein, the power margin information of 1 or N TRPs is carried in a power margin report PHR, and each TRP corresponds to M power margin information. Different power margin information of each TRP corresponds to different uplink transmission waveforms. The uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

[0462] Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (such as steps S2101 and S2102, but not limited to these) performed by the network device 102 in any of the above methods, which will not be repeated here.

[0463] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0464] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0465] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0466] As shown in FIG7A , the communication device 7100 includes one or more processors 7101. The processor 7101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 7100 is used to perform any of the above methods.

[0467] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0468] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceiver 7103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S2101 and S2102, but not limited thereto), and the processor 7101 performs the other steps.

[0469] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0470] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102. The interface circuit 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0471] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0472] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0473] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0474] In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to the memory 7203. The interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and can be used to send signals to the memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.

[0475] In some embodiments, the interface circuit 7202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S2101 and S2102, but not limited thereto), and the processor 7201 executes the other steps.

[0476] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0477] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0478] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0479] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0480] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A method for sending a power headroom report, characterized in that: The method comprises: Sending first information, where the first information is used to indicate power headroom information of one or N TRPs in a multi-transmission receiving point M-TRP scenario, where the power headroom information includes at least a power headroom PH and a configured maximum transmit power, where N is an integer greater than 1; Among them, the power headroom information of the 1 or N TRPs is carried in a power headroom report PHR, each TRP corresponds to M power headroom information, the different power headroom information of each TRP corresponds to different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

2. The method according to claim 1, characterized in that The method further comprises: Receive second information, where the second information is used to instruct the terminal to report M power margin information of each TRP in N TRPs, where the M power margin information of each TRP corresponds to M uplink transmission waveforms, and M is greater than 1.

3. The method according to claim 1 or 2, characterized in that: The M power headroom information of each TRP is determined based on at least one of the following: The PUSCH currently being transmitted; Reference PUSCH for network equipment configuration; The most recently transmitted PUSCH in the time window.

4. The method according to any one of claims 1 to 3, characterized in that The currently transmitted PUSCH and the PUSCH carrying the reported power headroom information meet the time requirement, and the M power headroom information of each TRP is determined based on the currently transmitted PUSCH of each TRP; The M power headroom information of each TRP includes: First power headroom information, where the first power headroom information is actual power headroom information determined based on an uplink transmission waveform used by a PUSCH currently being transmitted; Second power headroom information, wherein the second power headroom information is virtual power headroom information determined based on a target waveform; The target waveform is a waveform to be switched for PUSCH transmission by the terminal.

5. The method according to any one of claims 1 to 3, characterized in that: The currently transmitted PUSCH and the PUSCH carrying the reported power headroom information do not meet the time requirement, or the terminal is not currently transmitting the PUSCH, and the M power headroom information of each TRP is determined based on the reference PUSCH, and the reference PUSCH is configured based on different uplink transmission waveforms; The M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the reference PUSCH.

6. The method according to any one of claims 1 to 3, characterized in that: The M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the currently transmitted PUSCH.

7. The method according to claim 3, characterized in that There is a transmitted PUSCH in the time window, and the reference PUSCH is the most recently transmitted PUSCH in the time window.

8. The method according to any one of claims 1 to 7, characterized in that The M power margin information corresponding to each TRP includes a maximum transmit power, and the maximum transmit power is determined based on at least a maximum power backoff MPR of the terminal, a power management maximum power backoff P-MPR, and an additional maximum power backoff A-MPR.

9. The method according to any one of claims 1 to 8, characterized in that The uplink transmission waveform is a discrete Fourier transform orthogonal frequency division multiplexing DFT-s-OFDM waveform, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the continuous frequency domain resource allocation FDRA configuration.

10. The method according to any one of claims 1 to 8, characterized in that The uplink transmission waveform is a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, the first FDRA corresponding to the CP-OFDM waveform is continuous or discontinuous, and the power headroom information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the second FDRA configuration; The second FDRA is determined based on the first FDRA or based on a predefined reference configuration, and the second FDRA is a continuous frequency domain resource allocation.

11. The method according to claim 1, characterized in that: The method further comprises: Receive third information, where the third information is used to instruct the terminal to report M power headroom information.

12. The method according to claim 11, characterized in that The M power headroom information corresponds to one TRP, and the first information includes the M power headroom information corresponding to one TRP; The 1 TRP is determined based on at least one of the following methods: The TRP of the actual transmitted PUSCH; Predefined TRPs; The TRP corresponding to the transport layer number of 1; Resource blocks are allocated with consecutive TRPs; The channel condition meets the TRP threshold.

13. The method according to any one of claims 2 to 12, characterized in that The second information or the third information is not enabled, or the second information is not configured, or the third information is not configured; The first information is used to indicate 1 power margin information of each TRP in 1 or N TRPs.

14. The method according to claim 13, characterized in that The uplink transmission waveform corresponding to one power headroom information of each TRP is a target waveform, and the target waveform is a waveform to be switched for the terminal to transmit PUSCH; The sending of the first information includes: Before receiving the first command, sending the first information; The first command is used to instruct the terminal to switch the uplink transmission waveform.

15. The method according to claim 13, characterized in that The uplink transmission waveform corresponding to one power headroom information of each TRP is the waveform used for actually transmitting the PUSCH; The sending of the first information includes: Upon receiving the first command, sending the first information; The first command is used to instruct the terminal to switch the uplink transmission waveform.

16. The method according to any one of claims 1 to 15, characterized in that The first information is carried in a redefined media access control element MAC-CE, or a newly added MAC-CE.

17. The method according to claim 2 or 11, characterized in that: The second information or the third information is carried in the redefined RRC signaling or the newly added RRC signaling.

18. The method according to any one of claims 1 to 17, characterized in that The terminal transmits the PUSCH based on single downlink control information S-DCI or multiple downlink control information M-DCI.

19. The method according to any one of claims 1 to 18, characterized in that The terminal transmits PUSCH based on a single carrier or carrier aggregation CA.

20. A method for sending a power headroom report, characterized in that: The method comprises: Receive first information, where the first information is used to indicate power headroom information of one or N TRPs in a multiple transmission and reception point M-TRP scenario, where the power headroom information includes at least a power headroom PH and a configured maximum transmission power, where N is an integer greater than 1; Among them, the power headroom information of the 1 or N TRPs is carried in a power headroom report PHR, each TRP corresponds to M power headroom information, the different power headroom information of each TRP corresponds to different uplink transmission waveforms, the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

21. The method according to claim 20, characterized in that The method further comprises: Send the second information, where the second information is used to instruct the terminal to report M power margin information of each TRP in N TRPs, where the M power margin information of each TRP corresponds to M uplink transmission waveforms, and M is greater than 1.

22. The method according to claim 20 or 21, characterized in that The M power headroom information of each TRP is determined based on at least one of the following: The PUSCH currently being transmitted; Reference PUSCH for network equipment configuration; The most recently transmitted PUSCH in the time window.

23. The method according to any one of claims 20 to 22, characterized in that The currently transmitted PUSCH and the PUSCH carrying the reported power headroom information meet the time requirement, and the M power headroom information of each TRP is determined based on the currently transmitted PUSCH of each TRP; The M power headroom information of each TRP includes: First power headroom information, where the first power headroom information is actual power headroom information determined based on an uplink transmission waveform used by a PUSCH currently being transmitted; Second power headroom information, wherein the second power headroom information is virtual power headroom information determined based on a target waveform; The target waveform is a waveform to be switched for PUSCH transmission by the terminal.

24. The method according to any one of claims 20 to 22, characterized in that The currently transmitted PUSCH and the PUSCH carrying the reported power headroom information do not meet the time requirement, or the terminal is not currently transmitting the PUSCH, and the M power headroom information of each TRP is determined based on the reference PUSCH, and the reference PUSCH is configured based on different uplink transmission waveforms; The M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the reference PUSCH.

25. The method according to any one of claims 20 to 22, characterized in that The M power headroom information are M virtual power headroom information determined based on different uplink transmission waveform configurations of the currently transmitted PUSCH.

26. The method according to claim 22, characterized in that There is a transmitted PUSCH in the time window, and the reference PUSCH is the most recently transmitted PUSCH in the time window.

27. The method according to any one of claims 20 to 26, characterized in that The M power margin information corresponding to each TRP includes a maximum transmit power, and the maximum transmit power is determined based on at least a maximum power backoff MPR of the terminal, a power management maximum power backoff P-MPR, and an additional maximum power backoff A-MPR.

28. The method according to any one of claims 20 to 27, characterized in that The uplink transmission waveform is a discrete Fourier transform orthogonal frequency division multiplexing DFT-s-OFDM waveform, and the power margin information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the continuous frequency domain resource allocation FDRA configuration.

29. The method according to any one of claims 20 to 27, characterized in that The uplink transmission waveform is a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, the first FDRA corresponding to the CP-OFDM waveform is allocated continuously or discontinuously, and the power headroom information corresponding to the DFT-s-OFDM waveform under each TRP is determined based on the second FDRA configuration; The second FDRA is determined based on the first FDRA or based on a predefined reference configuration, and the second FDRA is a continuous frequency domain resource allocation.

30. The method according to claim 20, characterized in that The method further comprises: Send third information, where the third information is used to instruct the terminal to report M power headroom information.

31. The method according to claim 30, characterized in that The M power headroom information corresponds to one TRP, and the first information includes the M power headroom information corresponding to one TRP; The 1 TRP is determined based on at least one of the following methods: The TRP of the actual transmitted PUSCH; Predefined TRPs; The TRP corresponding to the transport layer number of 1; Resource blocks are allocated with consecutive TRPs; The channel condition meets the TRP threshold.

32. The method according to any one of claims 21 to 30, characterized in that The second information or the third information is not enabled, or the second information is not configured, or the third information is not configured; The first information is used to indicate 1 power margin information of each TRP in 1 or N TRPs.

33. The method according to claim 32, characterized in that The uplink transmission waveform corresponding to one power headroom information of each TRP is a target waveform, and the target waveform is a waveform to be switched for the terminal to transmit PUSCH; The receiving of the first information comprises: Before sending the first command, receiving the first information; The first command is used to instruct the terminal to switch the uplink transmission waveform.

34. The method according to claim 32, characterized in that The uplink transmission waveform corresponding to one power headroom information of each TRP is the waveform used for actually transmitting the PUSCH; The receiving of the first information comprises: Sending a first command and receiving the first information; The first command is used to instruct the terminal to switch the uplink transmission waveform.

35. The method according to any one of claims 20 to 34, characterized in that The first information is carried in a redefined media access control element MAC-CE, or a newly added MAC-CE.

36. The method according to claim 21 or 30, characterized in that The second information or the third information is carried in the redefined RRC signaling or the newly added RRC signaling.

37. The method according to any one of claims 20 to 36, characterized in that The terminal transmits the PUSCH based on single downlink control information S-DCI or multiple downlink control information M-DCI.

38. The method according to any one of claims 20 to 37, characterized in that The terminal transmits PUSCH based on a single carrier or carrier aggregation CA.

39. A method for sending a power headroom report, characterized in that: The method comprises: The terminal sends first information to the network device, where the first information is used to indicate power headroom information of one or N TRPs in a multi-transmitting and receiving point M-TRP scenario, where the power headroom information includes at least a power headroom PH and a configured maximum transmit power, where N is an integer greater than 1; wherein the power headroom information of the one or N TRPs is carried in a power headroom report PHR, where each TRP corresponds to M power headroom information, and different power headroom information of each TRP corresponds to different uplink transmission waveforms, where the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer; The network device receives first information.

40. A terminal, characterized in that: include: A transceiver module, configured to send first information, wherein the first information is used to indicate 1 or N in a multi-transmitting and receiving point M-TRP scenario. The power headroom information of one or N TRPs is carried in a power headroom report PHR, each TRP corresponds to M power headroom information, and the different power headroom information of each TRP corresponds to different uplink transmission waveforms. The uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

41. A network device, characterized in that: include: A transceiver module is used to receive first information, wherein the first information is used to indicate the power margin information of one or N TRPs in a multiple transmitting and receiving point M-TRP scenario, wherein the power margin information includes at least a power margin PH and a configured maximum transmitting power, and N is an integer greater than 1; wherein the power margin information of the one or N TRPs is carried in a power margin report PHR, each TRP corresponds to M power margin information, and the different power margin information of each TRP corresponds to different uplink transmission waveforms, and the uplink transmission waveform is used to transmit PUSCH, and M is a positive integer.

42. A terminal, characterized in that: include: one or more processors; The processor is used to execute the method according to any one of claims 1 to 19.

43. A network device, characterized in that: include: one or more processors; Wherein, the processor is used to execute the method described in any one of claims 20-38.

44. A communication system, characterized in that: The invention comprises a terminal and a network device, wherein the terminal is configured to implement the method according to any one of claims 1 to 19, and the network device is configured to implement the method according to any one of claims 20 to 38.

45. A storage medium storing instructions, characterized in that: When the instructions are executed on a communication device, the communication device is caused to execute the method according to any one of claims 1-19 and 20-38.

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